Earon K. Johnson
Senior Full Stack Engineer
Westlake,TX
Summary
Results-driven Senior Full Stack Engineer with over 6 years of experience in architecting and delivering enterprise-scale systems at Fidelity Investments. Expertise in distributed systems, backend engineering, algorithms, and large-scale application modernization facilitates the design of robust solutions that address complex business needs. Proficient in Java microservices, Angular architecture, and CI/CD automation, consistently driving efficiency and innovation in development processes. Currently pursuing an OMSCS to enhance systems knowledge and advanced computer science theory, positioning for high-performance engineering roles.
Overview
7
7
years of professional experience
Work History
Senior Full Stack Engineer
Fidelity Investments
Westlake, TX
11.2024 - Current
- Led development of Guided Verification, an AI-enhanced fraud-prevention system
- Integrated Voice Print recognition, OTP validation, and manual verification workflows
- Strengthened customer identity assurance across high-volume call-center operations
- Reduced verification time and improved fraud-detection accuracy through intelligent workflow orchestration
- Built and optimized Java microservices supporting identity, security, and authentication workflows
- Implemented parallel processing for data-intensive operations
- Improved system reliability and reduced latency
- Modernized legacy systems using Angular and Glue42
- Improved load times and reduced UI friction for 9,000+ internal users
- Collaborated with cross-functional teams
- Security, fraud analytics, platform engineering
- Integrated biometric and multi-factor authentication signals
- Presented architectural solutions to senior leadership
- Influenced roadmap decisions and CI/CD improvements
Software Engineer
Fidelity Investments
Westlake, TX
01.2021 - 10.2024
- Built the Advisor Maintenance Facility (AMF) Angular application
- Replaced legacy IE-based tools and modernized advisor workflows
- Maintained WI FocusPoint (.NET)
- Supported a core enterprise desktop system used by 9,000+ associates
- Owned full-stack development for multiple enterprise tools
- Delivered enhancements across UI, backend, and deployment pipelines
Software Engineering Intern
Fidelity Investments
Westlake, TX
06.2019 - 12.2020
- Developed a Python time-series data pipeline for Metricbeat telemetry
- Collected data every 10 seconds and aggregated into 1-minute summaries
- Published daily metrics to dashboards for operational visibility
- Automated Kafka/Anodot onboarding
- Improved observability workflows and reduced manual setup time
Education
B.S. - Information Technology
University of North Texas
Denton, TX12.2020
Skills
- Languages: Java, TypeScript, JavaScript, C#, C, Python
- Frontend: Angular, HTML, CSS
- Backend: Java Microservices, NET, REST APIs
Websites
AWARDS
Exceptional Performance (2022, 2023), Badge of Honor – Peer-Selected (2022, 2023)
Timeline
Senior Full Stack Engineer
Fidelity Investments
11.2024 - Current
Software Engineer
Fidelity Investments
01.2021 - 10.2024
Software Engineering Intern
Fidelity Investments
06.2019 - 12.2020
B.S. - Information Technology
University of North Texas